Improvement in pumps



iwi dtift.

OLIVER HIGGINS, OI1 NAPOLEON,

OHIO.

VLetters Patent No. 111,645, dated February 7, 1871.

l-MPROVEN-IENT IN PUMPS..

I The Schedule referredto in these Letters Patent and making part of the sanne.

To all whom t (may concern Beit known that I, OLIVIER HIGGINS, of Napoleon, in the county of- Henry'and State of Ohio, have iuvented a new and valuable Improvement in Force.- Pum'ps'; andvI do hereby declare that the following is a full, clear, and exact description of the `con- In order to enable others skilled in the art to.

which my invention appertains to make and use the same, I will now proceed to describe its construction and operation, referring to the annexed drawing.

A represents the pump-cylinder, which is open at `both end's, and connected, at or about its center, by a' pipe, I3, Vwith the pump-stock O, through which the water is forced upward from the cylinder.

D represents the pump or piston-rod, upon which, at suitable distance apart, are secured the piston-heads a (L.

Ihese headsare perforated, as shown, and provided with vertically-operating valves b b.

The rod D, between the two heads a a, passes through a cut-olil or plate, G,'provided ontwo sides with rectangular plates d, extending above and below In the center of the cylinder A are two vertical slots, through each of which passes a screw, e, into the corresponding plate on the cnt-off.

The movement of the cut-oli` G corresponds nearly with the diameterpof the connecting-tube B. v

As the piston-beads `move up and down they will, in turn, or .rather-the valves will, come in contact with the ends of tbe plates d d, and` move the cut-ofi' either up or down, Aas the ca se may be, the length of the slots in the cylinder, when the screws e e stop the motion.

. The plates d d extend above and below. 'the cut-off far enough, so that, at whatever position the cut-off is, the slots in the cylinder will bc covered.

Having thus fully described my invent-ion,

What I claim as new, and desire to secure by Letters Patent, is-

In combination withA the cylinder A, slotted vertically at z z, the automatic cut-ofi` Gr, provided with the guard-plates (l d and the guide-screws e c, and

the double-headed piston-rod I), substantially as specilied.

In testimony that I claim the above I have heren unto subscribed myv name in the presence of two wit- 

